"Texas Deaths, 1890-1976," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K3DY-T7Z : 5 December 2014), Calvin Rowell in entry for A M Rowell, 02 May 1920; citing certificate number 18050, State Registrar Office, Austin; FHL microfilm 2,073,788.
"Texas, County Tax Rolls, 1837-1910", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2QG-Y9CS : 21 July 2016), Calvin Rowell, 1897.
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